CN206325309U - A kind of bundled tube demister - Google Patents
A kind of bundled tube demister Download PDFInfo
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- CN206325309U CN206325309U CN201621331915.1U CN201621331915U CN206325309U CN 206325309 U CN206325309 U CN 206325309U CN 201621331915 U CN201621331915 U CN 201621331915U CN 206325309 U CN206325309 U CN 206325309U
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- bundled tube
- guide
- demister
- separator
- cylinder shell
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Abstract
The utility model provides a kind of bundled tube demister, it includes multiple cylindric demisters, multiple cylindric demisters form a bundled tube structure at the top of absorption tower, demister includes cylinder shell and one or more guide layers being arranged on inside cylinder shell, multiple guide layers are uniformly arranged in inside cylinder shell from the bottom to top, guide layer includes the speed increaser for being used to increase flow rotation speed, separator for different-grain diameter droplet in separating flue, collector ring and guide ring, collector ring and guide ring are successively set on the top of the separator, the separator includes the multiple guide vanes being uniformly arranged, the guide vane is regular to be obliquely installed.The utility model is applied to the dust minimum discharge application of Thermal generation unit, there is stronger removal ability for dust, and efficiency of dust collection is high, reaches 5mg/Nm3Below；Thoroughly eliminate gypsum rain；Running resistance is low, does not increase extra operating cost.Floor space is small, the problem of solving place insufficient space.
Description
Technical field
The utility model belongs to desulfurization demisting field, more particularly to a kind of bundled tube demister.
Background technology
Wet desulfurizing process is a kind of conventional desulfurizing industrial fume administering method, in sweetening process, less slurries
Particle diameter contributes to the quick progress of gas liquid reaction, however, therefore the flue gas after desulfurization can include slurries droplet, the droplet of small particle
Easily carried and discharge by air-flow, cause staining and heavy corrosion for blower fan, heat exchanger and flue, therefore purifying smoke is leaving suction
Needed before receiving tower by demisting.
Bundled tube demister complex structure in conventional art, cost is higher, and demisting efficiency is not high, and guide vane is also easy to produce
Short-time overheating or bundled tube demister, which are blocked, causes malformation, and then causes service life shorter.Occurs a kind of flat board afterwards
Formula bundled tube demister, structure is simpler, but desulfurization demisting efficiency is low, and effect is undesirable, is not suitable for sulphur tower and uses.
Utility model content
In order to overcome the defect of prior art, the purpose of this utility model is to provide a kind of desulfurization except fog effect is good, knot
Structure is simple, be suitable for the bundled tube demister of sulphur tower, and it is provided with over thousands of demister, and demister is provided with multiple lead
Fluid layer, being capable of more preferable desulfurization demisting.
What the utility model was realized in：It includes multiple cylindric demisters, and multiple cylindric demisters exist
A bundled tube structure is formed at the top of absorption tower, the multiple demister is fixed on the top on the absorption tower by support beam,
The demister includes cylinder shell and one or more guide layers being arranged on inside the cylinder shell,
The multiple guide layer is uniformly arranged in inside the cylinder shell from the bottom to top, and the guide layer includes being used to increase gas
Flow the speed increaser of rotary speed, for the separator of different-grain diameter droplet, collector ring and guide ring in separating flue, the remittance
Stream ring and the guide ring are successively set on the top of the separator, and the separator includes the multiple water conservancy diversion being uniformly arranged
Blade, the guide vane is regular to be obliquely installed.
Preferably, the quantity of the demister can be arranged as required to.
Preferably, the guide layer is set to three.
Preferably, the end of the guide vane is provided with an inclined-plane, and the angle of inclination on the inclined-plane is 20-30 degree.
Preferably, the angle of inclination on the inclined-plane is 30 degree.
Preferably, the guide vane is inclined at an angle setting, the angle ranging from 15-20 degree.
Preferably, 18 degree be the angle ranging from.
Preferably, the housing is one kind in polyethylene, poly- maple, stainless steel or glass filament case.
Preferably, the collector ring and the guide ring are the equal funnel-shaped structure of two volumes, described two leakages
The bottom surface of bucket-shaped structure is in contact.
Compared with prior art, the utility model has the advantages that：
1. the utility model is applied to the dust minimum discharge application of Thermal generation unit, there is stronger removal for dust
Ability；Based on the principle of its physics dedusting, reliability is of a relatively high, is adapted to Thermal generation unit popularization and application.
2. the bundled tube demister that the utility model is provided, small, the maintenance operation low cost of investment, demisting good dedusting effect,
By being restrained in absorption tower top-loaded demister, the purpose of dust minimum discharge is reached.Demister is logical using flue gas
Cross and rotation is produced after three layers of guide vane of its setting, by the droplet and dust in centrifugal force separate flue gas, dust removing effects are non-
Chang Hao.
3. the utility model efficiency of dust collection is high, reaches 5mg/Nm3Below；Gypsum rain can thoroughly be eliminated；Running resistance is low,
Extra operating cost is not increased.Floor space is small, the problem of solving place insufficient space.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of demister of the present utility model；And
Fig. 3 is the structural representation of separator of the present utility model.
Embodiment
Describe exemplary embodiment, feature and the aspect of the present invention in detail below with reference to accompanying drawing.Identical is attached in accompanying drawing
Icon note represents the same or analogous element of function.Although the various aspects of embodiment are shown in the drawings, unless special
Do not point out, it is not necessary to accompanying drawing drawn to scale.
Below in conjunction with the accompanying drawings and specific embodiment is further explained to structure and working principle of the present utility model：
The utility model provides a kind of bundled tube demister, and as described in Figure 1, it includes multiple cylindric demisters 200,
Multiple cylindric demisters form a bundled tube structure 100 at the top of absorption tower, and multiple demisters are fixed by support beam
Top on absorption tower, the quantity of demister 200 can be arranged as required to.In actual applications, it is traditionally arranged to be thousands of
It is individual or hundreds of, generally more than 2900 millimeters of height.
Embodiment 1
Every unit of certain power plant is equipped with after two E field electrostatic precipitators of dual chamber five, unit operations in 2011, and flue gas is through quiet
After electric cleaner processing, dust concentration is reduced to 60mg/Nm3Hereinafter, flue gas is after the further dedusting of desulfuration absorbing tower, chimney
Dust emission concentration is less than 30mg/Nm3。
Further to lower dust emission concentration, implementation in power plant bundled tube dedusting transformation.
Bundled tube demister designs efficiency of dust collection 80%, and outlet droplet content in absorption tower can be controlled in 25mg/Nm3With
Under.On absorption tower, Inlet dust concentration is less than 25mg/Nm3When, smoke dust discharge concentration is less than 5mg/Nm3。
In the present embodiment, 16 meters of absorption tower diameter, absorption tower inside carries out the transformation of bundled tube deduster, and absorption tower is former
Demister and flushing water pipeline are removed, while removing upper strata demister support beam, reinforce lower layer support beam.At the scene in support beam
Bundled tube demister is installed.Tube bank 859, single 2900 millimeters of tube bank height are installed altogether.
1. commission saves environmental monitoring center, to pipe except outlet dust concentration is tested under different operating modes, tests number
According to as follows：
| Unit load | 300MW | 450MW | 600MW |
| First group | 4.2mg/Nm3 | 3.71mg/Nm3 | 4.07mg/Nm3 |
| Second group | 3.5mg/Nm3 | 3.6mg/Nm3 | 3.5mg/Nm3 |
| Average value | 3.8mg/Nm3 | 3.8mg/Nm3 | 3.77mg/Nm3 |
2. high concentrate dust is tested
Dust collection capacity is removed for testing tube, in the case of electric precipitation exits final stage power plant, high concentrate dust working condition measurement is carried out.
Test specification bundled tube deduster, under high concentrate dust operating mode, still there is stronger dust collection capacity.Test data is as follows：
| Unit load | Absorption tower entrance concentration | Absorption tower exit concentration |
| 550MW | 42.3mg/Nm3 | 3.82mg/Nm3 |
| 460MW | 34.9mg/Nm3 | 4.2mg/Nm3 |
3. tube bank demister outlet droplet test
Bundled tube house outlet droplet concentration is tested through saving DianKeYuan, under 600MW operating modes, droplet concentration is
15.8mg/Nm3。
4. bundled tube dust remover resistance is tested
Analyzed by different load section bundled tube deduster running resistance, its 300MW runs mean resistance in 90Pa or so,
In 600MW loads, its running resistance average out to 330Pa or so.
System water consume influences
5. the overall water consume of desulphurization system, no significant change, with being remained basically stable before transformation after transformation before and after statistics is transformed.
As shown in Figures 2 and 3, demister includes cylinder shell 1 and is arranged on inside the cylinder shell 1
Multiple guide layers 2, the multiple guide layer 2 is arranged in order from lower to upper on the inwall of housing 1.In the present embodiment, water conservancy diversion
Layer 2 is provided with 3.
Multiple guide layers 2 are uniformly arranged in inside cylinder shell 1 from the bottom to top, and guide layer 2 includes being used to increase gas
Flow the speed increaser 3 of rotary speed, for the separator 4 of different-grain diameter droplet, collector ring 5 and guide ring 6 in separating flue, converge
Stream ring 5 and guide ring 6 are successively set on the top of separator 4, and separator 4 includes the multiple guide vanes 41 being uniformly arranged,
Guide vane 41 is regular to be obliquely installed.
Collector ring 5 and guide ring 6 are the equal funnel-shaped structure of two volumes, and the bottom surface of two funnel-shaped structures connects
Touch.
Collector ring 5 is used to control thickness of liquid film, maintains suitable airflow distribution state.Guide ring 6 is used to control air-flow to go out
Mouth state, prevents from catching and knows drop by reentrainment.Be arranged on top guide layer 2 no longer set speed increaser 3, collector ring 5 and
Guide ring 6, only sets separator 4.
Preferably, the guide vane 41 is arranged on the separator 4 at a certain angle, the angle ranging from 15-20 degree.
Preferably, in the present embodiment, 18 degree be the angle ranging from.Under this angle, the demisting best results of blade.
The end of guide vane 41 is provided with an inclined-plane 42, and the angle of inclination on inclined-plane 42 is 20-30 degree.
Preferably, the angle of inclination on the inclined-plane 42 is 30 degree.
Preferably, the housing is one kind in polyethylene, poly- maple, stainless steel or glass filament case.
Operation principle of the present utility model is further explained below：
The use environment of bundled tube demister is containing a large amount of drop~50 DEG C saturation neat stress, and feature is droplet amount
Greatly, mist droplet particle size has a very wide distribution, and is made up of slurry droplet, condensation drop and dirt particle；Dedusting is mainly removing slurry droplet
With dirt particle.Collision probability is significantly under the conditions of high-speed motion for the substantial amounts of fine drop of cohesion of fine drop and particle and particle
Increase, it is easy to condense, assemble as bulky grain, so as to realize the separation from gas phase.
The liquid film of the tube wall surface of demister, which can be caught, knows the fine drop for touching its surface, especially speed increaser and point
From the blocked up liquid film on the surface of device blade, can occur " aproll " phenomenon in the presence of high velocity air, substantial amounts of big drop is from leaf
Piece surface is shed out, and the drop layer of big drop composition is formd on blade top, and the fine drop through drop layer is caught
Know, big drop falls back blade surface after becoming greatly, become big drop again, realization is known to catching for fine mist.
Air-flow after speed increaser accelerates rotates at a high speed to move upwards, and the fine mist, dirt particle in air-flow are in centrifugation
Power effect is lower to be separated with gas, is moved to drum surface direction.And the drop that the broken thing of the air-flow of high speed rotary motion is trapped exists
The liquid film layer of cylinder wall one rotary motion of formation.The fine mist and dust particale separated from gas is from de- in flue gas
Remove.
Multilevel deflector layer is realized to be known to catching for different-grain diameter drop
Gas rotating flow velocity is bigger, and centrifugal separating effect is better, catches and knows that drop amount is bigger, the thickness of liquid film of formation is bigger,
Running resistance is bigger, the easier generation for occurring secondary droplet；Therefore using multilevel deflector layer, respectively different in flow rate lower to mist
Drop is removed, it is ensured that the high-effective dust-removing effect under relatively low running resistance.
Compared with prior art, the utility model has the advantages that：
1. the utility model is applied to the dust minimum discharge application of Thermal generation unit, there is stronger removal for dust
Ability；Based on the principle of its physics dedusting, reliability is of a relatively high, is adapted to Thermal generation unit popularization and application.
2. the bundled tube demister that the utility model is provided, small, the maintenance operation low cost of investment, demisting good dedusting effect,
By being restrained in absorption tower top-loaded dedusting, the purpose of dust minimum discharge is reached.Bundled tube demister is logical using flue gas
Cross and rotation is produced after three layers of guide vane of its setting, by the droplet and dust in centrifugal force separate flue gas, dust removing effects are non-
Chang Hao.
3. efficiency of dust collection is high, reaches 5mg/Nm3Below；Thoroughly eliminate gypsum rain；Running resistance is low, does not increase extra fortune
Row cost.Floor space is small, the problem of solving place insufficient space.
Certainly, in the above-described embodiments this kind of bundled tube demister with sulfur removal technology, and in actual applications,
This kind of bundled tube demister can be also employed on other field, above-mentioned replacement also fall into protection scope of the present invention it
It is interior.
Finally it should be noted that：Above-described each embodiment is merely to illustrate the technical solution of the utility model, rather than
It is limited；Although the utility model is described in detail with reference to the foregoing embodiments, one of ordinary skill in the art
It should be understood that：It can still modify to the technical scheme described in previous embodiment, or to which part or whole
Technical characteristic carries out equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from the utility model
The scope of each embodiment technical scheme.
Claims (9)
1. a kind of bundled tube demister, it includes multiple cylindric demisters, and multiple cylindric demisters are absorbing tower top
Portion forms a bundled tube structure, it is characterised in that：The multiple demister is fixed on the top on the absorption tower by support beam
Portion, the demister includes cylinder shell and one or more water conservancy diversion being arranged on inside the cylinder shell
Layer, the multiple guide layer is uniformly arranged in inside the cylinder shell from the bottom to top, and the guide layer includes being used to increase
The speed increaser of big air-flow rotary speed, for the separator of different-grain diameter droplet, collector ring and guide ring in separating flue, institute
State collector ring and the guide ring is successively set on the top of the separator, the separator is multiple including what is be uniformly arranged
Guide vane, the guide vane is regular to be obliquely installed.
2. bundled tube demister according to claim 1, it is characterised in that：The quantity of the demister can be according to need
Set.
3. bundled tube demister according to claim 1, it is characterised in that：The guide layer is set to three.
4. bundled tube demister according to claim 1, it is characterised in that：It is oblique that the end of the guide vane is provided with one
Face, the angle of inclination on the inclined-plane is 20-30 degree.
5. bundled tube demister according to claim 4, it is characterised in that：The angle of inclination on the inclined-plane is 30 degree.
6. bundled tube demister according to claim 1, it is characterised in that：The guide vane, which is inclined at an angle, to be set
Put, the angle ranging from 15-20 degree.
7. bundled tube demister according to claim 6, it is characterised in that：It the angle ranging from 18 degree.
8. bundled tube demister according to claim 1, it is characterised in that：The cylinder shell be polyethylene, poly- maple,
One kind in stainless steel or glass filament case.
9. bundled tube demister according to claim 1, it is characterised in that：The collector ring and the guide ring are two
The equal funnel-shaped structure of individual volume, the bottom surface of described two funnel-shaped structures is in contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621331915.1U CN206325309U (en) | 2016-12-07 | 2016-12-07 | A kind of bundled tube demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621331915.1U CN206325309U (en) | 2016-12-07 | 2016-12-07 | A kind of bundled tube demister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206325309U true CN206325309U (en) | 2017-07-14 |
Family
ID=59288709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621331915.1U Active CN206325309U (en) | 2016-12-07 | 2016-12-07 | A kind of bundled tube demister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206325309U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499223A (en) * | 2018-11-12 | 2019-03-22 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Flushometer under a kind of tube bank demister |
| CN109530352A (en) * | 2018-11-14 | 2019-03-29 | 东北石油大学 | The rotary paraffin removal unit and its dewaxing method used in a kind of wax-containing oil pipe |
| CN109893955A (en) * | 2019-03-27 | 2019-06-18 | 海汇集团有限公司 | Desulphurization system restrains demister |
| CN112023536A (en) * | 2020-08-01 | 2020-12-04 | 内蒙古高原蓝节能环保科技有限公司 | Converging and guiding device for dedusting and demisting pipe bundle |
| CN112023534A (en) * | 2020-08-01 | 2020-12-04 | 内蒙古高原蓝节能环保科技有限公司 | Multistage cyclone tube bundle defogging barrel |
-
2016
- 2016-12-07 CN CN201621331915.1U patent/CN206325309U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499223A (en) * | 2018-11-12 | 2019-03-22 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Flushometer under a kind of tube bank demister |
| CN109499223B (en) * | 2018-11-12 | 2024-03-19 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Lower flushing device of tube bundle demister |
| CN109530352A (en) * | 2018-11-14 | 2019-03-29 | 东北石油大学 | The rotary paraffin removal unit and its dewaxing method used in a kind of wax-containing oil pipe |
| CN109530352B (en) * | 2018-11-14 | 2021-05-25 | 东北石油大学 | Rotary paraffin removal device used in wax-containing crude oil pipeline and paraffin removal method thereof |
| CN109893955A (en) * | 2019-03-27 | 2019-06-18 | 海汇集团有限公司 | Desulphurization system restrains demister |
| CN112023536A (en) * | 2020-08-01 | 2020-12-04 | 内蒙古高原蓝节能环保科技有限公司 | Converging and guiding device for dedusting and demisting pipe bundle |
| CN112023534A (en) * | 2020-08-01 | 2020-12-04 | 内蒙古高原蓝节能环保科技有限公司 | Multistage cyclone tube bundle defogging barrel |
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